Spraying device



N0. 6|6,989. Patented Jan. 3, I899. B. D. TABOR.

SPRAYING DEVICE;

(Application filed Dec. 30, 1897.)

(No Model.)

WITNESSES INVENTOR c5, q wm THE mums PEYERS co. pnoroumcq wAskmsrcw. u. c.

PATENT FFrcE.

BYRON D. TABOR, OF WILSON, NEW YORK.

SPRAYING DEVICE.

SPECIFICATION forming part of Letters Patent No. 616,989, dated January 3, 1899.

Application filed December 30, 1897. Serial No. 664,551. (No model.)

To all whom it may concern.-

Be it known that I, BYRON D. TABOR, of lVilson, in the county of Niagara and State of New York, have invented certain new and useful Improvements in Spraying Devices; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to an improvement in spraying devices more especially adapted for use in exterminating insects and vegetable parasites so pernicious to fruit-trees and other vegetation, the object being to provide a simple, inexpensive, and effectual instrument for use in spraying liquid for preventing'and curing plant disease; and it consists in certain novel features of construction and combinations of parts, which will be hereinafter described, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a view in longitudinal section of my improved sprayingdevice, and Fig. 2is a transverse section.

A represents a pump comprising a cylinder and a suitable piston. The stem of the piston terminates outside in a handle 1, which may very advantageously be formed by bending the wire constituting the stem around in the shape of a loop and then back alongside the stem to afford a stop 2 to strike against the head 3 of the cylinder and limit the end thrust of the piston in one direction. In the other head the usual tapering nipple l is located for the discharge of air.

B is the liquid-reservoir, preferably held a sufficient distance from the air-pump by plates 5 5 to afford space between the two for the operators fingers while holding the instrument. The reservoir B is usually divided by a transverse partition 6 into a large and small chamber 7 and 8, respectively, and

' near the outer end of the smaller chamber 8 an obliquely-set false bottom 9 is placed, and from a point adjacent to the acute angle formed by this false bottom 9 the siphontube 10 starts, it extending out through the side of the chamber 8 and preferably through the outer end of the air-pump between two of the plates 5 5 and terminating adjacent to the nipple .4, after the usual manner of atom izers. The function of the false bottom 9 is to trap fluid at the inner terminal of the siphontube when the instrument is discharged upward and also feed it until the entire contents of the chamber are exhausted when the instrument ispointed downward. By this arrangement almost, if not quite, the last drop may be pumped out, whereas in all known devices of this character in the absence of a similar provision there is always a considerable quantity left remaining which cannot be reached and pumped out.

The object of dividing the reservoir B into two compartments is to prevent too great a weight of liquid, when the instrument is aimed downward, upon the siphon-tube for the vacuum created, which would result in a failure of perfect operation; but by limiting this column of liquid to the capacity of the smaller chamber 8 the vacuum created by the expanding air incident to the consumption of the liquid is adequate to prevent an excess of flow at the outlet of the siphon-tube, and the consequence is that a finely-divided spray is created by the air discharged from the pump, and this spray may be directed by turning the instrument in the desired direction in the usual manner of manipulation of such devices. The supply of liquid is renewed to chamber 8 from chamber 7 through ports 15 and 16, and these ports are controlled by the slide-valve 17. This valve is slid to the position shown in Fig. 1 when chamber 8 is to be resupplied. When in that position the instrument is merely turned down to allow a supply of liquid from chamber 7 to fill chamber 8. Then the valve is slid forward to close the ports and the device is charged for operation.

The valve may be variously constructed; but the particular form shown is composed, preferably, of a rectangular block of leather, rubber, felt, or similar material with an opening 18 made in it and bound together by a plate of metal 19, flanged at the edge, as at 20, to embrace the soft material of the valve. A guide 21 at one side forms an abutment for the valve at that point, and of courseasimilar one might be arranged at both sides and ends, if desired, and a spring 22 holds the valve upon the surface of the reservoir with sufficient firmness to prevent the escape of liquid and still sufficiently yielding to admit of the valve being moved back and forth. The ports 15 and 16 are located sufficiently at the side to facilitate the refilling of the reservoir, and yet the location of the valve is sufficiently far between the pump-cylinder and the reservoir so that both it and the spring which holds it seated are housed by said parts.

It is evident that slight changes might be made in the form and arrangement of the several parts described without departing from the spirit and scope of my invention, and hence I do not wish to limit myself to the exact construction herein set forth; but,

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. A spraying device, the reservoir of which I is divided into two chambers, of an adjustable valve constructed and adapted to close both of said chambers simultaneously and to open communication between said chambers.

A spraying device, the reservoir of which is divided into two chambers separated by a partition, each chamber having a hole in its wall, and an adjustable valve adapted to span said holes, substantially as set forth.

3. In a spraying device the combination with an air-pump, of a reservoir having atrap formed at one end, and asiphon-tube leading from this trap and terminating contiguous to the outlet of the pump.

4. In a spraying device, a reservoir divided into communicating compartments, a valve for establishing communication between these chambers, said valve located partly between the pump-cylinder, and reservoir, and a spring for retaining it slidingly upon its seat on the surface of the reservoir.

5. In a spraying device, the combination with a cylinder, of a piston the stem of which terminates .in a handle one end of which is extended inward from the handle to form a stop to limit the inward thrust of the piston.

(5. The combination with apump-cylinder, a reservoir, and spacingplates holding the cylinder and reservoir a suitable distance apart, of a siphon-tube leading from the reservoir between two of the spacing-plates and terminating in proximity to the dischargeoutlet of the pump.

In testimony whereof I have signed this specification in the presence of two subscribin g witnesses.

\Vitnesses:

E. E. JOHNSON, I. N. MARKLE. 

